What value of m will make 4x-7y=5 and 9x+my=3 parallel?

Answers

Answer 1

Answer: $l:y=m_1x+b_1\ and\ k:y=m_2x+b_2\n\nl\ ||\ k\iff m_1=m_2\n------------------------\nl:4x-7y=5\to-7y=-4x+5\to y=(4)/(7)x-(5)/(7)\n\nk:9x+my=3\to my=-9x+3\to y=-(9)/(m)x+(3)/(m)\n\nl\ ||\ k\iff-(9)/(m)=(4)/(7)\n\ncross\ multiply:\n\n4m=-9\cdot7\n\n4m=-63\ \ \ \ /:4\n\nm=-15.75\leftarrow answer$

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Remmi wrote the equation of the line y=1/3(x+2) He solved for x and got x=3y-2 Which of the following is an equivalent equation for x?a. x=y-11/3
b. x=y+7/3
c. x=3(y-2/3)
d. x=3(y+2/3)

Answers

Answer:

Option c is correct

$x = 3(x - (2)/(3))$

Step-by-step explanation:

Remmi wrote the equation of the line :

$y = (1)/(3)(x+2)$

Multiply both sides by 3 we have;

$3y = x+2$

Subtract 2 from both sides we have;

$3y-2 = x$

x = 3y-2

We can write this as:

$x = 3(x - (2)/(3))$

Therefore, the following is an equivalent equation for x is, $x = 3(x - (2)/(3))$

Just took the quiz.

The answer is x=3(y-2/3)

Find the common ratio for the following sequence. 27, 9, 3, 1, .

Answers

27/9 = 3

9/3= 3

3/1 = 3

Answer: 3

Question answer now please

Answers

A certain clock requires a weight lifted up once a day. The weight provides the energy that allows the clock to keep running. Identify the transformation of that powers a grandfather clock.

Choose the correct product of (2x − 4)2.4x2 − 16
4x2 − 16x + 16
4x2 + 16
4x2 + 16x + 16

Answers

(2x-4)^2
(2x-4)(2x-4)
(2x)(2x-4)+(-4)(2x-4)
4x^2-8x-8x+16
4x^2-16x+16
2nd one

Answer:

4x2 − 16x + 16

Step-by-step explanation:

Name the shaded angle in three different ways

Answers

Answer:

1. "angle HGJ" or "angle JGH" (∠HGJ or ∠JGH)

2. "angle G" (∠G)

3. "angle 3" (∠3)

Step-by-step explanation:

Three ways the shaded angle can be named:

1. We can use capital letters to name the shaded angle. The middle letter indicates the vertex. Thus, we would name the shaded angle as: "angle HGJ" or "angle JGH". G is the middle letter, which indicates the vertex of the angle. Most often, the symbol "∠" is usually used to represent the word "angle". In short form, the shaded angle can be named as:

"∠ HGJ" or "∠ JGH"

2. The shaded angle can also be named according to the vertex. Thus, G is the vertex. The angle can be named "angle G" or "∠G"

3. Numbers can be placed at the vertex of the angle, and named accordingly. Thus, the shaded angle of which the vertex is labelled "3" can be named as "angle 3" or "∠3"

How can you quickly calculate 20 percent of any bill amount?

Answers

There are several ways in solving quick the 20% of any bill. One of those ways is by getting first the 10% of the amount then will later on be multiplied by two. Another one is by simply dividing the total bill amount by 5, which also 20% of the total bill amount. Hope this helps.

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